Feed-water purifier and boiler-skimmer.



H. M. NYE.

FEED WATER PURIFIER'AND BOILER SKIMMER.

APPLICATION FILED 00124. 1914.

Patented Dec. 28, 1915.

2 SHEETS-SHEET 1.

WITNESSES "VI/5W0? fi ivzzan M we Q B) 4 I I ATTORNEYS COLUMBIA PLANouRAPH co., WASHINGTON, Dv c.

H. M. NYE.

FEED WATER PURIFIER AND BOILER SKIMMER.

APPLICATION FILED OCT. 24. 1914.

1,1 66,245. Patented Dec. 28, 1915.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR jy a 276/7220 RIC/V 6' By W ATTORNEYS HERMAN MARCELLUS NYE, 0F LINCOLN, NEBRASKA.

FEED-WATER PURIFIER AND BOILER-SKIMMER.

Specification of Letters Patent.

Patented Dec. 2%, 1915.

Application filed October 24, 1914. Serial No. 868,503.

To all whom it may concern:

Be it known that I, HERMAN M. NYE, a citizen of the United States, and a resident of Lincoln, in the county of Lancaster and State of Nebraska, have invented a new and Improved Feedater Purifier and Boiler- Skimmer, of which the following is a full, clear, and exact description.

The invention relates to feed water purifiers and boiler skimmers, such as shown and described in the Letters Patent of the United States, No. 624,963, granted to me on May 16, 1899.

The object of the present invention is to provide a new and improved feed water purifier and boiler skimmer arranged to readily remove the sediment contained in the feed water prior to passing the latter into the boiler, and to remove oil or other matter floating on the surface of the water in the boiler.

In order to accomplish the desired result, use is made of a mixing device for mixing the feed water with the boiler water with a view to heat the feed water and to cause a separation of the impurities in the feed water, and a precipitating device connected with said mixing device to precipitate the impurities from the feed water and to separate the oil from the water.

A practical embodiment of the invention is represented in the accompanying drawingsforming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation of the feed water purifier and boiler skimmer as applied to a steam boiler, part of which is broken out to show the skimmer; Fig. 2 is a sectional plan view of the same on the line 22 of Fig. 1; Fig. 3 is a similar view of the same on the line 3-3 of Fig. 1; and Fig. 4 is a perspective view of the skimmer.

The feed water pipe A is connected at one end in the usual manner with a feed water pump or the like, and the other end A of the said feed water pipe A is attached to the upper end of a closed vessel B, preferably located adjacent the boiler C. The end A terminates in a downwardly extending curved nozzle D discharging the feed water into a hopper E secured within the upper end of the vessel B and having its upper edge extending to the inner surface .of the vessel B. .By the arrangement dee scribed the feed water delivered bythe nozzle D is caused to whirl around in the hopper E to finally reach the open bottom thereof.

Into the hopper E extends a second nozzle F arranged similarly to the nozzle D and connected with a pipe G having a valve G and extending into the boiler C, the terminal of the pipe G within the boiler being submerged in the boiler water and the entrance of the boiler water to the said pipe being through a skimmer H, as hereinafter more fully explained. By the arrangement described the boiler water can pass by way of the pipe G and nozzle F into the hopper E to whirl around in the same and thereby mix with the feed water discharged by the nozzle D so that the feed water is heated by the boiler water, and air and carbonic acid gas are liberated and pass from the top of the Vessel B into a pipe I having a valve I leading to a pipe I connected with the bottom of the vessel B for carrying off the sediment therefrom. The pipe I is provided with a valve 1: and it leads to a suitable place of discharge.

Directly below the open bottom of the mixing hopper E is arranged the hoppershaped top J of a tube J extending centrally within the vessel B to within a distance of the bottom of the vessel. \Vithin the tube J is arranged a vertically disposed and diametrically arranged baiiie J the upper end J 3 of which extends into the lower portion of the hopper-shaped top J of the tube J. A water tube K surrounds coaxially the precipitating tube J, and the upper end of this water tube K is provided with an outwardly extending flange K attached to the inner surface of the vessel B. Braces J extend from the flange K to the hoppershaped top J "to support the precipitating tube J within the vessel B and braces J connect the lower end of the mixing hopper E with the upper end of the hopper-shaped top J of the precipitating tube J to hold the several parts in central alinement within the vessel 13. Delivery pipes L connect with the interior of the vessel B immediately below the flange K and the said delivery pipes L are connected with each other by a pipe L connected with a pipe L leading to the water compartment of the boiler C. p

The delivery pipe L is provided with a check valve L and a controlling valve L The bucket H is segmental in shape and is hung at the middle of its sides on pivot pins N projecting from a collar N attached to the lower end of the pipe G. One end of the bucket H is pivotally connected by a yoke O with a counterbalancing lever P fulcrnmed on a second collar P attached to the pipe G a distance above the collar N. A counterweight P is adjustably mounted on the rear end of the lever P and is adapted to be fastened thereto by a set screw P The lower end of the yoke O is provided with outwardly extending flanges Q, sup porting weights Q to hold this end of the bucket H in a downward direction flush with the level of the boiler water, as plainly indicated in Figs. land 4. By the arrangement described the oil and other extraneous matter floating on the boiler water can readily pass into the bucket H and into the pipe G to be delivered by the latter to the nozzle F as previously explained. It is un-' dersto'od that by the arrangement described the'lower end of the pipe G is held submerged in the water. contained in the bucket H.

The operation is as follows: When the boiler is in use and the feed water pump is running then the feed water passes by way of'the pipe A and nozzle D into the mixing hopperE and at the same time the boiler water passes from the boiler by way of the bucket'H, pipe G and nozzle F into the hopperE 'to mix with the feed water and thus heat the same. The'water from the nozzles D and F is caused to whirl around in the hopper E to insure an intimate mixture of the cold vand hot water to liberate any air or gas that may be contained in the feed Water, the gas passing out of the vessel Bv by way of the pipe I, as previously explained." The mixed heated water passes through the open bottom of the mixing hopper E into the hopper-shaped top J of the precipitating tube J and a portion also passes'into' the vessel B below the mixin'g hopper by way of the space between the bottom ofthe hopper E'and the top J, and this water passes finally over the flange K into the tube K and down the same into the lower portion of the vessel B. The water passing into the tube J is stopped in its whirling motion by the baffle plate J the'sediment readily and slowly sinks through the tube J onto the bottom of the vessel'B from which the sediment is withdrawn from time to time by the operator opening the'valve 1 The purified water isftakeirfrom the vessel B immediately below'thfe'fiange K and discharged into the Water compartment of the boiler C by way of'thepipes L, L and L Circulating means such'as pumps'lt and S are interposed inthe pipes Grand L respectively to insure proper circulation of the water. It will also be noticed that the evaporation, circulation and violent boiling of the water within the" boiler C causes the impurities in the water to rise to the surface where they are caught up by the bucket H and conveyed by the pipe G and nozzle F to the mixing hopper E, as previously explained, and the impurities of this boiler water are precipitated in the bottom of the vessel B together with the sediment from the feed water.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent:

1. A device of the class described, C0111- prising a closed vessel, a hopper in the said vessel and into which discharges tangei'ltially a feed water supply pipe and a. hot water supply pipe adapted to be connected with the water compartment of a boiler to mix the feed water with the hot boiler water, and a separating and precipitating means into which discharges the said mixing hopper to separate the water and impurities and to precipitate the impurities.

2. A device of the class described, com prising a closed vessel, a mixing hopper in the said vessel and open at the bottom, nozzles discharging tangentially into the mixer, one of the nozzles being connected with a feed water supply pipe and the other being connected with a hot water pipe adapted to be connected with the water compartment of a boiler, and a separating and precipitating tube extending vertically in the said vessel and into which discharges the bottom of the said mixing hopper.

3. A device of the class described, comprising a closed vessel, a mixing hopper in the said vessel and open at the bottom, nozzles discharging tangentially into the mixer, one of the nozzles being connected with a feed water supply pipe and the other being connected with a hot water pipe adapted to be connected with the water compartment of a boiler, av separating and precipi tating tube extending vertically in the said vessel and into which discharges the bottom of the said mixing hopper, and a baiile disposed diametrically in the said tube.

4:. A device of the class described, C0111- prising a closed vessel, a mixing hopper in the said vessel and open at the bottom, nozzles discharging tangentially into the mixer, one of the nozzles being connected with a feed water supply pipe and the other being connected with a. hot water pipe adapted to be connected with the water compartment of a boiler, a separating and precipitating tube disposed centrally below the said mixing hopper and having at its upper end a funnel extending under the open bottom of the hopper, a water tube surrounding the said separating and precipitating tube and having a flange at its upper end connected with the interior surface of the vessel, the said tubes terminating distances from the bottom of the vessel.

5. A. device of the class described, comprising a closed vessel, a mixing hopper in the said vessel and open at the bottom, nozzles discharging tangentially into the mixer, one of the nozzles being connected with a feed water supply pipe and theother being connected with a hot water pipe adapted to be connected with the water compartment of a boiler, a separating and precipitating tube disposed centrally below the said mixing hopper and having at its upper end a funnel extending under the open bottom of the hopper, a water tube surrounding the said separating and precipitating tube and having a flange at its upper end connected with the interior surface of the vessel, the said tubes terminating distances from the bottom of the vessel, and a diametrically arranged and vertically disposed battle in the said separating and precipitating tube.

6. A device of theclass described, comprising a closed vessel, a mixing hopper in the said vessel and open at the bottom, nozzles discharging tangentially into the mixer, one of the nozzles being connected with a feed water supply pipe and the other being connected with a hot water pipe adapted to be connected with the water compartment of a boiler, a separating and precipitating tube disposed centrally below the said mixing hopper and having at its upper end a funnel extending under the open bottom of the hopper, a water tube surrounding the said separating and precipitating tube and having a flange at its upper end connected with the interior surface of the vessel, the said tubes terminating distances from the bottom of the vessel, an outlet pipe leading from the said vessel at a point immediately below the said flange, the outlet pipe connecting with the water compartment of the boiler.

7. A device of the class described, comprising a closed vessel, a hopper held in the upper portion of the said vessel and having an open bottom, a nozzle connected with a water supply and discharging tangentially onto the said hopper, a precipitating tube disposed centrally in the vessel and having at its upper end a funnel a distance below the said open bottom of the hopper, the lower .end of the said tube terminating a distance above the bottom of the said vessel, and a vertically disposed baflle arranged diametrically in the said tube.

8. A device of the class described, comprising a closed vessel, a hopper held in the upper portion of the said vessel and having an open bottom, a nozzle connected with a water supply and discharging tangentially onto the said hopper, a precipitating tube disposed centrally in the vessel and having at its upper end a funnel a distance below the said bottom of the hopper, the lower end of the-said tube terminating a distance above the bottom of the said vessel, and a vertically disposed baffle arranged diametrically in the said tube and extending with its up per end onto the said funnel.

9. A. device of the class described, comprising a closed vessel, a hopper held in the up per portion of the said vessel and having an. open bottom, a nozzle connected with a wa ter supply and discharging tangentially onto the said hopper, a precipitating tube dis posed centrally in the vessel and having at its upper end a funnel a distance below the said open bottom of the hopper, the lower end of the said tube terminating a distance above the bottom of the said vessel, a vertically disposed battle arranged diametrically in the said tube, and a water tube concentric to the said precipitating tube and provided at its upper end with a flange extending to the inner surface of the said vessel, the lower end of the said water tube being a distance above the bottom of the said vessel.

10. A device of the class described, comprising a closed vessel, a hopper held in the upper portion of the said vessel and having an open bottom, a nozzle connected with a water supply and discharging tangentially onto the said hopper, a precipitating tube disposed centrally in the vessel and having at its upper end a funnel a distance below the said open bottom of the hopper, the lower end of the said tube terminating a distance above the bottom of the said vessel, a vertically disposed baffle arranged diametrically in the said tube, and a water tube concentric to the said precipitating tube and provided at its upper end with a flange extending to the inner surface of the said vessel, the lower end of the said water tube being a distance above the bottom of the said vessel and a distance above the lower end of the said precipitating tube.

11. A device of the class described, com prising a closed vessel, a hopper held in the upper portion of the said vessel and having an open bottom, a nozzle connected with a water supply and discharging tangentially onto the said hopper, a precipitating tube disposed centrally in the vessel and having at its upper end a funnel a distance below the said open bottom of the hopper, the lower end of the said tube terminating a distance above the bottom of the said vessel, a vertically disposed bathe arranged diametrically in the said tube, a water tube concentric to the said precipitating tube and provided at its upper end with a flange extending to the inner surface of the said vessel, the lower end of the said water tube being a distance above the bottom of the said vessel, and a water pipe connected with the said vessel below the said flange, the water pipe leading to the water compartment of the boiler.

12. In a device of the class described, the combination with a boiler, of=a skimmer in the boiler, a closed vessel, a mixer in the 4s 1,1ee,245

upper part of the vessel, a separating and precipitating device in the vessel and into which the mixer discharges, a pipe leading from the skimmer and discharging into the mixer, and a feed Water pipe'also discharging into the mixer.

13. In a device of the class described, the combination With a boiler, of a closed vessel, a mixer in the upper parts of the vessel, a separating and precipitating device in the vessel and into which the mixer discharges, a feed ater pipe discharging into the mixer,

a pipe extending into the boiler and discharging into the mixer, and a skimmer carried by the end of the pipe extending into the boiler and into which the said pipe projects.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HERMAN MARCELLUS NYE.

Witnesses JOHN E. MURR Y, HAZEL E. QUACKLNBUSII.

Gppies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

